Slicing apparatus



Dec. 1, 1931. `1 W0ZN|AK ET AL 1,834,300

SLICING APPARATUS Filed July l, 1929 Patented Dec. 1, 1931 UNrrED STATESA JOSEPH WozNrAx AND ERNEST G. BREMFORDER, or nnTRoIn'MICrI'IGAN l summer` APPARATUS Application med July 1, 1a2a.seria1 ne, 375,164.

.This invention relates to slicing apparay tus, which is particularly adapted for Slic-l ing vegetables which are to be dried, as for l example in the preparation of potato chips.

The most important objectsof the invention are to provide means for cutting thinv slices of substantially uniform thickness and in the form of a succession of waves, and

ypreferably to arrange these waves so that they radiate from a common center,A or in other words,-so that'each crestV is along an arcuate line which is concentric with the crests of the other waves.

The specific construction of our improved apparatus, which in its present embodiment is particularly adapted for making potato chips, will be more particularly described in connection with the accompanying drawings, in which v- Y Figure 1 is a front elevation of the apparatus with a portion of the front housing plate broken away.

Figure 2 is a vertical section on an enlarged scale taken substantially on the line 2 4-2 of Figure 1.

Figure 3 is a detail sectional view taken on the line 3 3 of Figure 1.

Figure 4 is a detail sectional view taken on the line 4-4 of Figure 1.

Our invention, as used in making potato chips, is illustrated in connection with a housing or hood 6, the front side of which is closed by a cover plate 7 removably secured thereto by machine bolts or other suitable means. The rear portion of the housing 6 is extended rearwardly to form a sleeve 8 and suitable bearing members 9 are provided in the sleeve and at the center of the plate 7 for receiving a shaft 10, which is rotated through the medium of a gear 11 secured to Y its rear end or by any other suitable means.

A block 12. preferably in the form of a circular disk. is secured to the shaft within the housing 6 near the cover plate 7. The front face of this disk is formed with a series of concentric grooves 13 extending about the center thereof, so that a plane passing through the aXis ofv the disk intersects the front face thereof in a line which is made up of a succession of waves. One or more knife vthereby are formedwitha seriesrof waves..

,thejuice to run. out freely, 'sov that thejslice is easilyand. quickly dried and a large perblades 14 are secured to thefront face of the disk 1,2, four such'blades being shown in the present instance.V Each blade 14 is formed l-with a vseriesvof waves -15 correspondingfin t contour to the face of a disklZ and uniformly 'spacedtherefrom a distance equal to the thickness of the slice to be cut. Behind the cutting edge of each blade 14, the disk12 is i formedwith aslot 16 and the rear faceo'f the cutting edge and the adjacent edge of the '60 l rsloty 16 are beveled so that'theslice, as'it is fout, will be directed through the slot 16 and will drop tothe bottom of the-housin-g.,v

` For Lfeeding the potatoes'or other material to, be sliced tothe cutter, a hopper 17 isise- 65 cured to the front face of the cover plate 7 vand the cover plate is provided `with a feed opening 18 at the rear side of the hopper.. A pusher 19 is secured to a shaft 20, which is journaled'in bearings 21 mounted on the up- 70 per part ofthe cover plate. .The shaft 20 is formed at one end with a crank 22having a liandle`23 and the material.' is fed to the re. volving cutter .by the weight of the pusher 19 and crank 22 or pressureapplied through 75 the mediumof the handle 23.l i i In K the operation ofrour `improved Y slicing apparatus it will be seen that-the slices cut These Vwaves not only present an attractive appearance when` the slice is dried, but the cutsurface, curving as it does` intersects all of the pores or ducts in the potato, allowing centage -of the starch contained `in the potato collects upon the surface, where-it may be collected after the chips are dried and will constitute a by-product of considerable value. It is also to be noted' that the grooves and 90 ridges formed in the slice are curved along arcuate lines concentric with the axis about which the cutter revolves. These grooves and ridges act as a reinforcement in the diu rection of their length. and since this direc- D tion constantly changes, with different degrees of curvature for different' ridges. the entire surface of the chip maintains substantiallyl its original shape and does not curl up during the drying process. This results in a product of uniformly attractive appearance.

While We have shown and described in considerable detail the preferred form of the invention, it is to be understood that this is merely for the purpose of illustration and that the invention includes all such modifications as may fall Within the scope of the appended claims. What We claim is:

l. In a slicing apparatus, a cutting blade having a surface extending sinuously in the direction of its length and terminating .at its front side in a continuously curved sinuous cutting edge, the crests of the vvaves defining a series of concentric arcs, and means for moving said' blade repeatedly above the Vcommon center of said arcs and across the materia] to cut therefrom successive slices of substantially uniform thickness and each made up of a succession of arcuate concentric Waves.V l 2L In a slicing apparatus, a cutting blade having` a surface eXtending sinuously in the ,25 direction of its length and terminating at itsfront side in a. continuously *curved sinuous cutting edge, the crests of th'efwaves deiining a seriesrof concentric arcs, a block to Which said blade is secured, said block hav- A ing .a Vsinuous surface complementary to the sinuous surface ofthe blade and spaced therefroin, and means for moving said blade and block about the common center of said arcs, Vto :cut slices having a series of acuate concentric waves, which pass between the blade and the block.

3. In a slicing apparatus, a rotatable Vdisk having a face formed With a series of alternate grooves and ridges concentric to its axis, and of such contour that a plane through the disk intersects them in a continuous sinuous curve, a cutting blade secured to the disk havingra 4face spaced from the grooved face of the disk and having a contour complementary thereto, whereby slices cut by the rotation of the disk from material held thereagainst Will be of Wavy form, With the crests of the Waves n 1arcuate lines concentric to the aXis of the 1s r.

In testimony whereof ,We have hereunto signed our names to this specification.

ERNEST G. BREMFORDER. JOSEPH W'OZNIAK. 

